If your Outlook address book is out of sync with the Global Address Book, you may notice missing or incorrect entries. You can manually synchronise your address book with the Global Address Book.

  1. In Outlook, click 'File', select 'Account Settings', then select 'Download Address Book...'

    Screenshot of the 'Account Information' window with the 'Account Settings' and 'Download Address Book...' buttons selected
     
  2. Uncheck ‘Download changes since last Send/Receive', then click ‘OK’.

    Screenshot of the 'Offline Address Book' window with the 'Download changes since last Send/Receive' and 'OK' options selected. 
     

The update can take a few minutes to complete.